Great ideas for teaching subtraction strategies in 2nd and 3rd grade. The actual structure is good for all grades. Notice how she frames the problems on the board, this is a great way to jumpstart mathematical conversations about strategies.

Here are some items that belong in an upper elementary toolkit. Remember that a toolkit has 2 parts. The first part is the materials and the second part is the templates. Introduce the items as you use them. In the beginning of the year you will use many of these items in your daily routines. For example, you can use the pattern blocks during the Fraction of the Day routine.

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